CN204165041U - A kind of feeder pipe connecting device of Coal Feeding System for Circulating Fluidized Bed Combustion Boiler - Google Patents
A kind of feeder pipe connecting device of Coal Feeding System for Circulating Fluidized Bed Combustion Boiler Download PDFInfo
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- CN204165041U CN204165041U CN201420627127.1U CN201420627127U CN204165041U CN 204165041 U CN204165041 U CN 204165041U CN 201420627127 U CN201420627127 U CN 201420627127U CN 204165041 U CN204165041 U CN 204165041U
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- square tube
- tube body
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- fluidized bed
- stirring piece
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Abstract
A feeder pipe connecting device for Coal Feeding System for Circulating Fluidized Bed Combustion Boiler, it relates to a kind of feeder pipe connecting device.The utility model is easily occur chute blockage phenomenon in the coal spout device solving existing Coal Feeding System for Circulating Fluidized Bed Combustion Boiler, owing to being difficult to dredging cleaning, causes ensureing problem CFBB being realized to continuous coal supply.Described connection pipe body forms square tube body, second by first and forms square tube body and the 3rd and form square tube body and form, second composition square tube body is the square tube body that upper end cross section to lower end cross section expands gradually, rotating shaft forms two waist holes on square tube body through second and is slidably connected with two waist holes, first stirring piece and the second stirring piece are positioned at the second composition square tube body and are fixed in rotating shaft, it is external and be fixed in one end of rotating shaft that turning handle is positioned at the second composition square tube, and at least one stops that block is fixed in the aperture place of second composition side's tube wall near waist hole.The utility model is used in Coal Feeding System for Circulating Fluidized Bed Combustion Boiler.
Description
Technical field
The utility model is specifically related to a kind of feeder pipe connecting device of Coal Feeding System for Circulating Fluidized Bed Combustion Boiler.
Background technology
The structure of the coal spout device of existing Coal Feeding System for Circulating Fluidized Bed Combustion Boiler is to ensure that coal can enter burner hearth smoothly, and reduce resistance and specifically arrange, its coal spout is from the horizontal by 55 ° of angles.The adapter connecting feeder is vertical direction, will form a corner cut with coal spout like this, if limited by boiler body volume and running layer, feeder adapter can be taken over coal spout and be formed certain horizontal range, so just need to bend feeder adapter, bend rear formation two elbows, coal spout adopts the pipe of φ 325, by the restriction of structure space, bending radius can not be excessive, consider the thinning wall thickness of technique, bending radius again can not be too small, the manufacturing process more complicated of bend pipe.Due to the high humidity of coal, the probability of chute blockage is substantially increased in two elbows, affect the ruuning situation of unit, in this case will dredge by butt tube, only unconspicuous by beaing the vibrative effect of adapter, by boiler body space and running layer restriction, add and to shake or screw is more difficult, manpower can only be utilized, a gap is outputed in adapter, dredge with iron rod, coal is sent in burner hearth, ensure the normal operation of unit, the arc plate cut down should be welded with adapter after dredging, arc plate has circular arc degree, so weld cumbersome.
Utility model content
The purpose of this utility model is to provide a kind of feeder pipe connecting device of Coal Feeding System for Circulating Fluidized Bed Combustion Boiler, easily there is chute blockage phenomenon in the coal spout device solving existing Coal Feeding System for Circulating Fluidized Bed Combustion Boiler, owing to being difficult to dredging cleaning, cause ensureing problem CFBB being realized to continuous coal supply.
The utility model is solve the problems of the technologies described above the technical scheme taked to be:
The feeder pipe connecting device of described a kind of Coal Feeding System for Circulating Fluidized Bed Combustion Boiler comprises connection pipe body, first stirring piece, second stirring piece, rotating shaft, turning handle, at least one stops block, multiple first stirs gear piece and multiple second stirs gear piece, described connection pipe body is square body, described connection pipe body forms square tube body by first, second composition square tube body and the 3rd composition square tube body composition, described first composition square tube body, second composition square tube body and the 3rd composition square tube body are from top to bottom fixedly connected with in turn from beginning to end and are made as one, described first composition square tube body is identical with the level cross-sectionn of the 3rd composition square tube body, described second composition square tube body is the square tube body that upper end cross section to lower end cross section expands gradually, the tube wall of described second composition square tube body is processed with two through waist holes, described rotating shaft forms two waist holes on square tube body through second and is slidably connected with two waist holes, described first stirring piece and the second stirring piece are positioned at the second composition square tube body and are fixedly connected in rotating shaft, described first stirring piece unilateral on be fixedly connected with multiple first stir gear piece, described second stirring piece unilateral on be fixedly connected with multiple second stir gear piece, it is external and be fixedly connected on one end of rotating shaft that described turning handle is positioned at the second composition square tube, at least one stops block and described turning handle homonymy and is fixedly connected on the aperture place of second composition side's tube wall near waist hole.
The utility model has following beneficial effect:
1, the object that in the utility model, the second composition square tube body is set to the square tube body that upper end cross section to lower end cross section expands gradually arranges to coordinate the structure of existing coal-feeding tube and angle of inclination, effectively reduces the probability that chute blockage phenomenon occurs.
2, first stirring piece in the utility model, second stirring piece, rotating shaft, turning handle, multiple first vibrational power flow stirred between gear piece and multiple second stirring gear piece is in order to when there is chute blockage phenomenon in connection pipe body, by staff's hand rotation turning handle, first stirring piece and the second stirring piece by the rotation of rotating shaft around axis of rotation, chute blockage is played to the effect of stirring and dredging, the phenomenon of effective elimination chute blockage, multiple first setting of stirring gear piece and multiple second stirring gear piece can realize the wet coal of auxiliary stirring fast, effectively prevent from the first stirring piece and the second stirring piece being piled up or hangs bulk to wet coal, improve operating efficiency of the present utility model.
3, at least one stops that the setting of block is in order to when not needing the first stirring piece and the second stirring piece carries out stirring work, only needs that turning handle is slided into the other end from the one end in waist hole and is overlapped between at least one stop block.Play the effect of stopping first stirring piece and the second stirring piece stirring work, also do not affect staff to other inspection work of Coal Feeding System for Circulating Fluidized Bed Combustion Boiler.
4, the setting that in the utility model, the first composition square tube body, the second composition square tube body and the 3rd composition square tube body are rectangular tube conveniently after dredging to be welded to facilitate staff to cut body with dredging when there is serious chute blockage phenomenon, overcome and need to find radian accurately in existing pipe welding process and the tedious steps welded, reduce the labour intensity 80% of staff, shorten working hours and reach 40%, operating efficiency improves 60%.
5, Stability Analysis of Structures of the present utility model is reliable, manufacture processing is simple, installation and maintenance are convenient, can realize the operating process of dredging wet coal in less space, can ensure and continuous coal supply is realized to CFBB, not affect the normal work of CFBB.
Accompanying drawing explanation
Fig. 1 is the main TV structure schematic diagram of the coal spout device of existing Coal Feeding System for Circulating Fluidized Bed Combustion Boiler, Fig. 2 is main TV structure schematic diagram of the present utility model, Fig. 3 is the first stirring piece 2, second stirring piece 3, the main TV structure schematic diagram of annexation between rotating shaft 4 and turning handle 5, and Fig. 4 is using state figure of the present utility model.
Detailed description of the invention
Detailed description of the invention one: composition graphs 1, Fig. 2, Fig. 3 and Fig. 4 illustrates present embodiment, the feeder pipe connecting device of a kind of Coal Feeding System for Circulating Fluidized Bed Combustion Boiler described in present embodiment comprises connection pipe body 1, first stirring piece 2, second stirring piece 3, rotating shaft 4, turning handle 5, at least one stops block 6, multiple first stirs gear piece 7 and multiple second stirs gear piece 8, described connection pipe body 1 is square body, described connection pipe body 1 forms square tube body 1-1 by first, second composition square tube body 1-2 and the 3rd composition square tube body 1-3 composition, described first composition square tube body 1-1, second composition square tube body 1-2 and the 3rd composition square tube body 1-3 is from top to bottom fixedly connected with in turn from beginning to end and is made as one, described first composition square tube body 1-1 is identical with the level cross-sectionn of the 3rd composition square tube body 1-3, described second composition square tube body 1-2 is the square tube body that upper end cross section to lower end cross section expands gradually, the tube wall of described second composition square tube body 1-2 is processed with two through waist holes 9, described rotating shaft 4 forms two waist holes 9 on square tube body 1-2 through second and is slidably connected with two waist holes 9, described first stirring piece 2 and the second stirring piece 3 are positioned at the second composition square tube body 1-2 and are fixedly connected in rotating shaft 4, described first stirring piece 2 unilateral on be fixedly connected with multiple first stir gear piece 7, described second stirring piece 3 unilateral on be fixedly connected with multiple second stir gear piece 8, it is outer and be fixedly connected on one end of rotating shaft 4 that described turning handle 5 is positioned at the second composition square tube body 1-2, at least one stops that block 6 is fixedly connected on the aperture place of the second composition square tube body 1-2 outer wall near waist hole 9 with described turning handle 5 homonymy.
The coal spout of the 3rd composition square tube body 1-3 communication loop fluidized-bed combustion boiler in the utility model, the coal spout 10 of CFBB is an existing component in Coal Feeding System for Circulating Fluidized Bed Combustion Boiler, and the position of opening in waist hole 9 arranges the coal spout intersection that also can be arranged on the 3rd composition square tube body 1-3 and CFBB.The diameter of described rotating shaft 4 is 60mm, described first stirring piece 2 forms a stirring sheet 2-1 by multiple first and forms, multiple first composition to stir between a sheet 2-1 gap side by side and arranges and be all fixedly connected in rotating shaft 4, and each first composition stirs and evenly on the front end face of a sheet 2-1 and rear end face is furnished with multiple first and stirs gear piece 7; Multiple described second stirring piece 3 forms a stirring sheet 3-1 by multiple second and forms, multiple second composition to stir between a sheet 3-1 gap side by side and arranges and be all fixedly connected in rotating shaft 4, and each second composition stirs and evenly on the front end face of a sheet 3-1 and rear end face is furnished with second and stirs a gear piece 8.
Detailed description of the invention two: composition graphs 1, Fig. 2, Fig. 3 and Fig. 4 illustrate present embodiment, the first stirring piece 2 and the second stirring piece 3 described in present embodiment to be fixedly connected in rotating shaft 4 and to be located along the same line.First stirring piece 2 of such setting and the stirring of the second stirring piece 3 when rotating around rotating shaft 4 are wet the better effects if of coal.Other composition and annexation identical with detailed description of the invention one.
Detailed description of the invention three: composition graphs 1, Fig. 2, Fig. 3 and Fig. 4 illustrate present embodiment, the width of the first stirring piece 2 described in present embodiment and the width sum of the second stirring piece 3 are less than the caliber of the second composition square tube body 1-2.Be convenient to the utility model work well.Other composition and annexation identical with two with detailed description of the invention one.
Detailed description of the invention four: composition graphs 1, Fig. 2, Fig. 3 and Fig. 4 illustrate present embodiment, described in present embodiment, the upper end cross section of the second composition square tube body 1-1 is rectangle or square, and the lower end cross section of described second composition square tube body 1-1 is rectangle or square.When the upper end cross section of described second composition square tube body 1-1 is rectangle with its lower end cross section, its upper end cross-sectional area is 280mm × 325mm, and its lower end cross-sectional area is 410mm × 325mm is optimal process size in actual processing work; When the upper end cross section of described second composition square tube body 1-1 is square with its lower end cross section, its upper end cross-sectional area is 290mm × 290mm, and its lower end cross-sectional area is 390 × 390mm is optimal process size in actual processing work.Such size is the most practical in real work.Other composition and annexation identical with detailed description of the invention three.
Detailed description of the invention five: composition graphs 1, Fig. 2, Fig. 3 and Fig. 4 illustrate present embodiment, stops the block that block 6 is made for band steel in present embodiment.Band steel is drawn materials conveniently, the convenient making stopping block 6.Other composition and annexation identical with four with detailed description of the invention one.
Detailed description of the invention six: composition graphs 1, Fig. 2, Fig. 3 and Fig. 4 illustrate present embodiment, stops described in present embodiment that the number of block 6 is one, two or four.When the number stopping block 6 is one, its setting position is fixedly connected with in the lower end in the aperture in the waist hole 9 of the side of the second composition square tube body 1-2 at turning handle 5 place, stops block 6 without just turning handle 5 being ridden over this during turning handle 5; When the number stopping block 6 is two, its setting position on a sidewall of the second composition square tube body 1-2 at turning handle 5 place, and lays respectively at the top and bottom in the aperture in waist hole 9.In like manner four stop that block 6 is arranged on the top and bottom in the aperture in waist hole 9, and the upper end in the aperture in waist hole 9 arranges two and stops block, and the lower end in the aperture in waist hole 9 arranges two other and stops block.Other composition and annexation identical with detailed description of the invention five.
In conjunction with detailed description of the invention one, two, three, four, five and six, the course of work of the present utility model is described:
First, wet coal is by entering in the first composition square tube body 1-1 in connection pipe body 1, if there is chute blockage phenomenon by during the second composition square tube body 1-2, staff can manually shake turning handle 5, by the rotation of turning handle 5, rotating shaft 4 is rotated, thus drive the first stirring piece 2, second stirring piece 3 to rotate around rotating shaft 4, thus effectively stir the wet coal piled up, as also there is chute blockage phenomenon, a sidewall of connection pipe body 1 directly can be cut open, after cleaning chute blockage, directly with sheet Plate Welding.
Claims (6)
1. the feeder pipe connecting device of a Coal Feeding System for Circulating Fluidized Bed Combustion Boiler, it is characterized in that: the feeder pipe connecting device of described a kind of Coal Feeding System for Circulating Fluidized Bed Combustion Boiler comprises connection pipe body (1), first stirring piece (2), second stirring piece (3), rotating shaft (4), turning handle (5), at least one stops block (6), multiple first stirs gear piece (7) and multiple second stirs gear piece (8), described connection pipe body (1) is square body, described connection pipe body (1) forms square tube body (1-1) by first, second composition square tube body (1-2) and the 3rd composition square tube body (1-3) composition, described first composition square tube body (1-1), second composition square tube body (1-2) and the 3rd composition square tube body (1-3) are from top to bottom fixedly connected with in turn from beginning to end and are made as one, described first composition square tube body (1-1) is identical with the level cross-sectionn of the 3rd composition square tube body (1-3), the square tube body that described second composition square tube body (1-2) expands gradually for upper end cross section to lower end cross section, the tube wall of described second composition square tube body (1-2) is processed with two through waist holes (9), described rotating shaft (4) forms two waist holes (9) in square tube body (1-2) through second and is slidably connected with two waist holes (9), described first stirring piece (2) and the second stirring piece (3) are positioned at the second composition square tube body (1-2) and are fixedly connected in rotating shaft (4), described first stirring piece (2) unilateral on be fixedly connected with multiple first stir gear piece (7), described second stirring piece (3) unilateral on be fixedly connected with multiple second stir gear piece (8), described turning handle (5) is positioned at the second composition square tube body (1-2) and be fixedly connected on one end of rotating shaft (4) outward, at least one stops block (6) and described turning handle (5) homonymy and be fixedly connected on the aperture place of the second composition square tube body (1-2) outer wall near waist hole (9).
2. the feeder pipe connecting device of a kind of Coal Feeding System for Circulating Fluidized Bed Combustion Boiler according to claim 1, is characterized in that: it is upper and be located along the same line that described first stirring piece (2) and the second stirring piece (3) are fixedly connected on rotating shaft (4).
3. a kind of feeder pipe connecting device of Coal Feeding System for Circulating Fluidized Bed Combustion Boiler according to claim 1 or 2, is characterized in that: the width of described first stirring piece (2) and the width sum of the second stirring piece (3) are less than the caliber of the second composition square tube body (1-2).
4. the feeder pipe connecting device of a kind of Coal Feeding System for Circulating Fluidized Bed Combustion Boiler according to claim 3, it is characterized in that: the upper end cross section of described second composition square tube body (1-1) is rectangle or square, the lower end cross section of described second composition square tube body (1-1) is rectangle or square.
5. a kind of feeder pipe connecting device of Coal Feeding System for Circulating Fluidized Bed Combustion Boiler according to claim 1 or 4, is characterized in that: stop the block that block (6) is made for band steel.
6. the feeder pipe connecting device of a kind of Coal Feeding System for Circulating Fluidized Bed Combustion Boiler according to claim 5, is characterized in that: the number of described stop block (6) is one, two or four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420627127.1U CN204165041U (en) | 2014-10-27 | 2014-10-27 | A kind of feeder pipe connecting device of Coal Feeding System for Circulating Fluidized Bed Combustion Boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420627127.1U CN204165041U (en) | 2014-10-27 | 2014-10-27 | A kind of feeder pipe connecting device of Coal Feeding System for Circulating Fluidized Bed Combustion Boiler |
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| Publication Number | Publication Date |
|---|---|
| CN204165041U true CN204165041U (en) | 2015-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420627127.1U Expired - Fee Related CN204165041U (en) | 2014-10-27 | 2014-10-27 | A kind of feeder pipe connecting device of Coal Feeding System for Circulating Fluidized Bed Combustion Boiler |
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| CN (1) | CN204165041U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109230550A (en) * | 2018-10-16 | 2019-01-18 | 华北电力大学（保定） | A kind of full-automatic Pneumatic conveying pipeline dredger |
-
2014
- 2014-10-27 CN CN201420627127.1U patent/CN204165041U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109230550A (en) * | 2018-10-16 | 2019-01-18 | 华北电力大学（保定） | A kind of full-automatic Pneumatic conveying pipeline dredger |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150218 Termination date: 20211027 |